Reading through this post again it sure seems like an indication problem. Especially with temps that high. Do your IAT go that high every time? I'm sure you are super frustrated at this point and not saying you haven't done it but recheck the small things. I know for me my MAF extension wasn't seating properly at first and it was causing the IAT's to spike. The next thing I know the fans are running full steam trying to cool things off.
I have the extension fixed now and all is good. Granted I'm not at your elevation but driving the car today with temps of 94 the highest IAT I saw was 108.
Just something to check out
